linux-kernel - Re: futex hang with rpm in 2.6.17.1-2174

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Message-ID: <a36005b50610211455t35b5a097r5f9f25ff9238cb46@mail.gmail.com>
Date:	Sat, 21 Oct 2006 14:55:35 -0700
From:	"Ulrich Drepper" <drepper@...il.com>
To:	"Ben Greear" <greearb@...delatech.com>
Cc:	"Dave Jones" <davej@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: futex hang with rpm in 2.6.17.1-2174_FC5

On 10/21/06, Ben Greear <greearb@...delatech.com> wrote:
> Well, you can do tricks with file handles so that they are automatically
> closed/deleted when
> a process exits, even with kill -9.

Nope, that cannot work.  The lock object must be visible in the
filesystem space.

The correct solution would be to use robust mutexes.  But, as Dave
said, it's easier said than implemented in rpm.
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